Step Up

Step Up (Combat)
You can close the distance when a foe tries to move away.
Prerequisite: BAB +1.
Benefit: Whenever an adjacent foe attempts to take a 5-foot step away from you, you may also make a 5-foot step as an immediate action so long as you end up adjacent to the foe that triggered this ability.

(BAB +6): When you follow an adjacent foe, you may also make a single melee attack against that foe at your highest base attack bonus. This attack counts as one of your attacks of opportunity for the round.

OPEN GAME LICENSE Version 1.0a - All text is Open Game Content.